Exerciser



FIG. 1 is a perspective view of exerciser showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a left side elevational view thereof, wherein the broken line showing of the person and chair are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an exerciser, as shown and described. 